Means for pumping water under hydraulic power.



No. 7||,858`. Patented oct. 2|, |902.

.L D. Hos. MEANS FUR PUMPING WATER UNDER HYDRAULIC POW-ER.

(Applicatiun ed Jan. 23, 192.)

2 Sheets-Sheet l.

(No Model.)

Ill l l ITT" Patented Oct. 2|, |902. J. D. HUBBS. MEANS FOR PUMPINGWATER UNDER HYDRAULICv POWER.

(Application filed Jan. 23, 1902.)

-2 Sheeis-Sheet 2.

(No Model.)

Ill Q 2 m: cams Prrzns co Mom-Lamo.. wAsmNoToN. n. c.

UNITED STATES PATENT OFFICE.

JOSEPH D. HOBBS, OF MEDIAPOLIS, IOWA. i

MEANS FOR PUIVIPING WATER UNDER HYDRAULIC POWER.

SPECIFICATION forming part of Letters Patent No. 71 1,858, dated October21, 1902. Application tiled January 23,1902. Serial No. 90,964. (Nomodel.)

To aU whom it may concern:

Be itknown that I, JOSEPH D. I-IoBBs, a citizen of the United States,residing at Mediapolis, Des Moines county, Iowa, have invented certainnew and useful Improvements in Means for Pumping Water Under HydraulicPower, of which the following is a specification. y

My invention relates to means for pumping water under hydraulic power;and it consists in the features and combinations of parts hereinafterparticularly described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a side view of the inventionwith parts in section. Fig. 2 is a vertical sectional view of theinvention. Fig. 3 is a plan view of Fig. 2 with parts in section.- Fig.4 is a sectional plan view substantially on line 4 4 of Fig. 2. Fig. 5is a perspective view of a detail. Fig. 6 shows a supply for thehydraulic power.

In the drawings the pumping-cylinder 1 is of substantially ordinaryform, having heads 2, a pumping-piston 3, suitably packed, and a hollowpiston-rod 4extending through stuing-boxes 5, carried by the partitionsor heads 2. The eXtreme ends of the piston-rod are provided withpiston-heads 6, working in chambers 7 and forming continuations of thecasing of the pump-cylinder. These chambers have reduced extensions 8,in which the piston-heads move. Hydraulic power is supplied to the saidchambers 7 8 through ports 9 from a valve-casing 10, which contains asliding valve 11 of cylindrical form. This valve has ports 12 at itsupper and lower ends arranged to communicate alternately with the upperand lower chambers 7 and 8 through the upper and lower ports 9. Thevalve has sliding movement in its casing, being held and guided by apin-and-slot connection 13 14. The valve has iXed to its interior twoheads 15, with an air chamber formed between these heads, and avalve-rod16 is. connected with these heads and extends beyond the casing, havinghollow bodies or iioats 17 on its outer end. Pressure-water is suppliedto the valve-casing and to the interior of the valve to flow through theports 12and 9 from a pressure-chamber 18,

which connects at proper times with the interior of the valve throughthe ports 19 and 20, formed, respectively, in valve-casing and in thecylindrical wall of the valve. From Fig. 4 it will be seen that thepump-cylinder is arranged eccentric or to one side of the center of themain casing 21, and this will leave a chamber 18 between the two, whichI utilize as the pressure-chamber, to which the pressure-water issupplied. In this pressurechamber, as before stated, the valve-casing isarranged as shown in Fig. 4. The pressure-water is supplied from anysuitable source through inlet-pipes 22, branching off from a mainsupply-pipe 23. These branch pipes extend through upper heads 23 24',

with which the main casing is provided at the upper end thereof.

The water to be pumped from the well in which the apparatus is placed issupplied to the pump-cylinder through ports 24, formed on the outer ormain casing one above and the other below the position of thepumppiston. These ports are controlled by inlet check-valves 25, workingin small cylinders 26, through which the ports 24 are formed. Thesevalves besides controlling the flow of water from the well intov thepump-cylinder control also the outlet of the water from thepump-cylinder to the discharge-pipes 27, connected one to the uppersmall cylinder 26 and the other to the lower cylinder 26, this latterconnection being made through the pipe 28. Referring toFig. 4, the valve25 is in its position to allow the water from the well to flow into thepump-cylinder through the port 29, forming a continuation of the port24. This inflow of water to the pump occurs, of course, whenever thepump-piston moves away from the valve toward the opposite end of thecylinder, the valve then acting as an ordinary inletvalve. yWhen thepump-piston moves toward eitherend of the pump-cylinder, the valve atthat end closes upon its seat at 30, thus closing communication with thewell and opening communication through the port 31 with discharge-pipe27, before mentioned. The main casingis closed also at its lower end bya head 32, thus completing the pressure-chamber 18 at the lower end ofthe apparatus. The valve is controlled by the movement of thepumping-piston, and for this purpose I provide shown in Figs. 1 and 2and suitable connection is made with the supply of hydraulic power theoperation will be as follows: The pressure-water entering through thepipes 22 into the pressure-chamber enters the upper part of thevalve-casing and passes into the upper portion of the valve through theports 19 and 20, and thence passes by way of the ports 12 and 9 into theupper piston-chamber 8 and acting here upon the larger upper side l ofthis piston the same, together with the pump-piston, will be forced downand the water contained in the pump-cylinder below the pump-piston willbe forced out through the port 24 and will pass thence through the l;y

pipe 28 to the discharge-pipe 27. As the pumppiston moves down thewater. from the well iows through the ports 24 and 29 past the valve 25into the pump-cylinder on the upper side of the pump-piston ready forits delivery through said port 29, port 31, and dischargepipe 27 whenthe pump-piston makes its upward stroke.

As the pump-piston is about to complete its downward movement the up-jper pressure-piston strikes the arm 35 of the; catch and swings itinwardly, and this action effects two purposes. Itwithdraws the catchpinfrom the float and allows the valve to immediately reverse its positionunder the pressure of the water in the upper part of the` valve actingupon the fixed head 15 in the valve, it being understood that at thistime the lower portion of the valve is free from pressure by reason ofthe fact that the inletopening 20 of the valve is out of line with theinlet-opening 19 of the valve-casing. The reversal of the valve cuts offthe water from the upper pressure-chamber and admits the pressure-waterto the lower pressure-chamber, and the pumping-piston is thus movedupwardly by the hydraulic power acting upon the lower pressure-piston 6.The operation of the catch-lever 34 in the upper pressurechamber causesthe valve-disk 36 to be removed from the discharge-opening of the upthevalve the action of this valve is rendered easy, as the ioat tends ltosustain the weight of the valves.v

It will 'be noticed from Fig. 2 that the piston-rod is hollow and thepressure-pistons form closures for the upper ends thereof, thusproviding a float for the pumping-piston.

The tank for supplying the hydraulic power is shown in Fig. 6, thedischarge from this tank consisting of a downwardly-extending tube,which, as shown, is tapered. This is connected with the supply-pipesleading to the pressure-chamber. A suitable weight may be employed, asshown in Fig. 6, to get the desired pressure of water. This weight issupported by a Boat X, which fits the tank closely at its lower edge.The float is lled with air, and any suitable number of weights .may bearranged thereon to press it down.

From the float a stem 'y extends upwardly. This is in the form of a tubeperforated to supply air within the tank above the said tloat.

I Aclaim as my invention- `1. In combination, a pumping-cylinder, apumping-piston therein having its piston-rod extending through the headof the cylinder, pressure-pistons on the ends of said pistonrod,pressure-chambers in which said pressure-pistons operate, a valvecontrolling the inlet-ports to the pressure-chambers, said valve beingof elongated form, a head iiXed within the valve, means for holding thevalve in the position into which it is set, said means being adapted. tobe controlled at the nal movement of the said pressure-piston,substantially as described.

2. In combination, a pumping-cylinder, a pumping-piston therein, apiston-rod extending through the heads of the pumping-cylinder,pressure-chambers at the ends, pressurepistons connected with thepiston-rods insaid chambers, a valve for controlling the hydraulicsupply to the pressure-chambers, said valve having a piston to be actedon 'by the pressure-water, means for holding the valve in the positionto which it is moved, valves for controlling the outlet of the waterfrom the pressure-chambers, said valves and holding means beingcontrolled by the movement of the pressure-piston, substantially asdescribed.

3. In combination, a main casing, a pumpcylinder arranged eccentricthereto leaving a space between one side and lthe inner wall of thecasing to form a. pressure-chamber, a valve-casing arranged in saidspace and having ports communicating therewith, a valve operating insaid casing, a pumping-piston in the pumping-cylinder, means forlsupplying the pressure-chamber with water, and pressure-chambers havingpistons therein connected with the pumping-piston, the supply to saidpressure-chambers beingcontrolled by the valve, substantially asdescribed.

4:. In combination, a casing, a pumpingcylinder arranged thereineccentric to the roov IIO

easing to forma, pressure-chamber -between the pumping-cylinder,substantially as dethe pumping-cylinder and said easing, means scribed.IO forsuppl'ying water to said pressure-chamber, In testimony whereof Iaffix my signature :L valve controlling the flow of Water thereto, inpresence of two Witnesses.

pressure-pistons operated by the pressure of JOSEPH D. I-IOBBS. water,discharge-pipes and valves 25 oontrol- Witnesses:

ling the outlet of the Water through said pipes HENRY E. COOPER,

from the pumping-cylinder and the inlet to C. S. MIDDLETON.

